gistfile1.clj

(:require [monger.collection :as mc]
          [monger.conversion :as convert])

;; get distinct values from the posts collection for the field category.
(mc/distinct "posts" "category")

;; get distinct values from the posts collection for the field category with a query.
(mc/distinct "posts" "category" {:limit 5})

;; convert values to maps using an anonymous function
(map
  (fn [cat] (convert/from-db-object cat false))
  (mc/distinct "posts" "category"))